Swivel plug



M. KRANZ swIvEL PLG June 21 1927.

2 sheets-sheet 1 Filed Jan. 6, 1926 June 21, 1927. 1,633,025

M. KRANZ SWIVEL PLUG Filed Jan. e, 192e 2 sheets-sheet 2 Patented Junel 1927'.

UNITED STATES PATENT OFFICE.

MICHAEL KRANZ, F CHICAGO, ILLINOIS, ASSIGNOR 0F ONE-FOURTH T0 WINAND H.

' NELLES, OF CHICAGO, ILLINOIS.

SWIVELl PLUG.

' Application. filed January forming a part of this specification, and in' which, y l Fig. l is a plan view of the swivel plug;

Fig. 2 is a side view thereof; j

Fig. .3 is an end view; L .Fig 4 is an inner view of one of the body members or shells` taken substantially along 2o line 4 4 of Fig. 5;

Fig.- 5 is a longitudinal sectional view taken on line 5 5 of Fig. 1;

Fig. 6 is a cross sectional view taken on line 6--6' and Fig. 5; and f Fig. 7 is a plan view of the metallic member including the Contact fingers.

rIhe form of`my invention illustrated inY the drawings comprises a body part with a )plurality of sockets, and a threaded plug part which'is swiveled or rotatably mounted'oii the body part, so as to be readily` inserted and fastened in a threaded socket, and without rotating or turning the body part 1 with its plurality of sockets adapted to have a number of push plugs attached thereto.

The body part or. multiple socket .part comrises a` pair ofouter members or shell memers 10 which are-substantially identical in construction and have a plurality of connected or intersecting grooves or channelsll provided in the opposing faces. A spacing member or intermediate member 12 is placed between the shell members, and screws or elements 13 are used to fasten members 10 .45 and 12 together. A metallic member 14 is provided with a plurality of contact fingers or elements 15 which are arranged to rest in the grooves 11 and have curved or bent over outer endsk 16 forming resilient contacts for receiving the contact stems or tingers of other push plugs. Stems or bars 17 and 18 are mounted on the pair of metallic members 14, and have their outer ends 17 and 18 bent over transversely of the body member, the end 17 being spaced from 6,' 1926. Serial N0. 79,540.

the shell member 10 and the end 18 being preferably bent over to engage the spacing member 12.

The threaded upper part or plug portion comprises a threaded collar 20 provided with an annular iiange 21 which has its inner end 22 extending downwardly, and the free edge thereof bent outwardly to firmly engage a knurled operating member' 23 and fasten it on collar 20, a ring 24 being provided on 65 member 23 for a secure attachment to the collar 20. Aneck 25 of insulating material is mounted on collar 20 and is provided with a cut-out portion or notch 26 vto engage over bent end 17 of stem or barl'?. and to pre- 70 vent the neck 25 from rotating on the body portion. A Contact member or screw 27 extends through neck 25 and is fastened in the bent end 18 of stem or bar 18 thus retaining the neck firmly in position on the body part, while the knurledl member 23 and its attached collar1 2O are rotated for mounting the device on a threaded socket.

It is apparent from the above disclosures thatv I have provided a convenient swivel plug includin a socket part adapted to receive" a plura ity of push plugs, and have arranged the threaded plug part for convenient attachment to a threaded socket, without the necessity of turning or rotating the body part with its sockets and the plurality of push plugs which may be attached thereto; and furthermore that the entire device is arranged so ,that it lmay be readily assembled and taken apart when desired, and provides a very useful and economical construction.

While I have illustrated and described the preferred form of construction for carrying my invention into effect, this is capable of a5 variation and`modification without departing from the spirit of the invention. I, therefore,`do not wish to be limited to the precise details of construction set forth, but desire to avail myself of such variations and 100 modifications as come within the scope of the appended claims. t

Having described myI invention, what I claim as'new and desire to secure by Letters Patent is: A

1. A device of the class described comprising a body with a plurality of channels, metallic members with a plurality of contact fingers fnounted in said channels to provide a plurality of electric sockets, contact bars 110 i fastened to said metallic members and hav-4 member, a threaded bollar yvi pin extending through said neck and engag mg the other bar to retain the neck and collar in position on saidbody.

2. A device of the 'class described com-` prising a body with shell members having connected channels therein, a s aced member mounted between said she members, metallic members with contact fingers mountedin 'said channels, contact bars extending from said metallic members, one ofv said bars having the end bent outward and spaced from the body, the other having the end bentv over and engag flange means means on said collar or rotating -the channels to provide the the spacing bent end, the same, a neck mounted in saidcollar, and a contact member extending through said neck and fastened on the other .bent gages the spacing member.

3. A device of the character) described engaging under said outwardly comprising a body lhaving a plurality of channels, a plurality of contacts arran ed'in tric sockets, contact bars fastened to said contacts and having vtheir outer ends bent over, a collar arranged above the body, a non-conducting neck received in 'said collar an'd provided with a recess receiving one of against rotation, and an -electrode passing centrally through the neck and engaged with l the other bent end.

In testimony whereof I have name to this specication.

end whichena plurality o elecy ent ends whereby the lneck is held signed my mCHAEL KRANZQ 

